Sickle Cell Disease Clinical Trial
Official title:
A Phase 2/3, Double-Blind, Randomized, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Mitapivat in Subjects With Sickle Cell Disease
This clinical trial is a Phase 2/3 study that will determine the recommended dose of mitapivat and evaluate the efficacy and safety of mitapivat in sickle cell disease by testing how well mitapivat works compared to placebo to increase the amount of hemoglobin in the blood and to reduce or prevent the occurrence of sickle cell pain crises. In addition, the long-term effect of mitapivat on efficacy and safety will be explored in an open-label extension portion.
Mitapivat is a small molecule, oral activator of pyruvate kinase R (PKR). PKR is involved with maintaining health, energy, and longevity of red blood cells (RBCs). The study aims to evaluate the efficacy and safety of treatment with mitapivat in participants with sickle cell disease. The study is a Phase 2/3 study in which the recommended dose of mitapivat will be selected and further evaluated. The Phase 2 portion includes a 12-week randomized, placebo-controlled period in which participants will be randomized in a 1:1:1 ratio to receive 2 dose levels of mitapivat or placebo. The Phase 3 portion includes a 52-week randomized, placebo-controlled period in which participants will be randomized in a 2:1 ratio to receive the recommended mitapivat dose level or placebo. Participants who complete either the Phase 2 or Phase 3 portion will have the option to move into a 216-week open label extension period to receive mitapivat. ;
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